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274                                     FLOBA INDICA.                     [Ikmariacete
riora basi in saccos orbiculatos producta, apicibus concavis obtusis v. brevissime acn-
minatis; interiora lamina obovato-rotundata, basi contracta, oblique biloba v. cojrdata,
apice rostrataj appendice dilataia subinflata. Stigma lunatum. Siligua •§—l£-polli-
cares, plerumque exacte ellipticsc v. elliptico-ovatie, cyliudracese v. compress®, ratios
basi truncatse v. cordatse (cf. Ic. Tout. I'l. Nep.), in stylum validum £--|-poll. angus-
tatffi. Valves nunquam omnino iddehiscentes, saipissime facile solutfe, rubrse, valli-
bus humidis succulentsc, coiliI)us siccioribus submembranaceEe, Semma oblique
obovata, subgibba, basi utrinque areola minus granulata notata, ambitu plerumque
subhispido-granulata.
This is a very abundant Sikkim plant, whose extreme forms we have in vain at-
tempted to separate by any constant characters; whilst yet in that country, however,
we convinced ourselves that they all belong to one highly variable plant, and our
subsequent examinations, with the aid of Wallich's and our Khasia specimens, have
confirmed that conclusion. In the latter country we found it at the Kala Pani Bun-
galow only, whore it is abundant. We further much doubt whether 2). scandens
be distinct from this; in the absence of perfect flowers we cannot pronounce posi-
tively, but the membranous valve of the pod is of itself not a sufficient character,
and the markings of the surface of the seed vary so much in the Sikkim plant, that
we cannot lay much stress on them.
4. HYPECOUM, Tourn.
Chiazospermum, Bsmh.
Sepala 2, decidua. Petala 4, exteriova aiiticum et posticutn, obtusa,
triloba, subunguiculata, interiora trifida, lobo medio cochleariformi.
Stamina 4, petalis opposita, basi iiuda r. utrinque glandula stipata;
fintherse biloculares. Ooarium 1-loculare, ovulis in placentis intervai-
vidaribus pluribus, isthmis traoaversis sejunctis. Capaula siliquseformis,
intus articulata, articulis monospermis indehiscens v, dehiscens 8e-
mina compressa, utnbilico vcntrali linear!.—Herbae Mediterranea orien~
tales et Si&irica, pauca Indica, annu&, succo aqueo, radice fusiformi*
foliis glauci& pinnatisectis, scapis caulibasve pluribm simplictbus vel dl-
visis, floribus terminalibus.
This curious genus is intermediate in many respects between Papaveraceat and
Fumariacea, having the flower much more regular than in moat Pamariace<z, but
not so regular as in Papaveracea; in the characters of its petals it resembles Epi~
medium and Bongardia. amongst Berberide&> as also in its definite stamina being
opposite the petals. The glands described by Dadlicher at the bases of the filaments
are hardly visible in the species we have examined; when developed they probably
represent the appendix within the spur of Corydatis, and are possibly alao analogous
to the glands of Crvciftra, and remotely to the glandular bases of the petals of Ber-
berif. The middle lobe of the inner petals rcwmbles a deformed anther, and is said
by some authors to be occasionally polJiniferons, an observation we cannot confirm.
The opposition of the four stamens to the petals in this geuus would seem to confirm
Lindley's suggestion, ihat the corresponding lateral one-celled anthers of each bundle
in Fwnarfa, Corydalis, etc., are the half-anthers of one stamen., for this would reduce
the stamirial series of those genera to the same numerical formula as occurs in Hyps-
nourn, Efimedi-um, and Aceranthut: and the two central perfect stamina of Oorydaily,
fumarus, etc,, boiag opposite the oater petals, the abnormal fission of the two lateral
stamina may theoretically be supposed to result from the tendency to cohesion of all
the filaments in UxakOrder being partially overcome by the great irregularity of their
corolla. Supposing^hat the disposition of the stamens and petals of Hyjoecoum had
been the prevalent one in Fumariace<r, and that of Fumaria, Cori/dalis, etc., excep-
tional, the correctness/ of the above explanation would probably never have been